DIN 1725-2 Grade 3.2373 T5: Premium High-Strength, Corrosion-Resistant Aluminum Alloy

G-AlSi9Mg - excellent cast properites - applicable for complex, thin-walled cast pieces, with high strength and good toughness (hot hardened) - very good corrosion resistance - excellent weldability Application: - complex and high loaded parts of machines, like cylinder heads, crankcases, brake shoes - fast running and vibrating parts of the motor, fans etc.

Properties

General

Property	Temperature	Value	Condition	Related Standards
Density	20.0 °C	2.65 g/cm³	T5	DIN 1725-2, EN 1676, EN 1706

Mechanical

Property	Temperature	Value	Condition	Related Standards	Comment
Elastic modulus	20.0 °C	74.0 GPa	T5	DIN 1725-2, EN 1676, EN 1706
Elongation	20.0 °C	2.0 %	T5	DIN 1725-2, EN 1676, EN 1706
	20.0 °C	2.0 - 5.0 %	T5	DIN 1725-2, EN 1676, EN 1706
	20.0 °C	3.0 %	T5	DIN 1725-2, EN 1676, EN 1706
	20.0 °C	4.0 - 7.0 %	T5	DIN 1725-2, EN 1676, EN 1706
Hardness, Brinell	20.0 °C	75.0 [-]	T5	DIN 1725-2, EN 1676, EN 1706
	20.0 °C	75.0 - 110.0 [-]	T5	DIN 1725-2, EN 1676, EN 1706
	20.0 °C	80.0 [-]	T5	DIN 1725-2, EN 1676, EN 1706
	20.0 °C	80.0 - 115.0 [-]	T5	DIN 1725-2, EN 1676, EN 1706
Poisson's ratio		0.33 [-]			Typical for Cast 3xx.x Series Aluminium
Shear modulus		2.8 GPa			Typical for Cast 3xx.x Series Aluminium
Tensile strength	20.0 °C	220.0 MPa	T5	DIN 1725-2, EN 1676, EN 1706
	20.0 °C	230.0 - 300.0 MPa	T5	DIN 1725-2, EN 1676, EN 1706
	20.0 °C	240.0 MPa	T5	DIN 1725-2, EN 1676, EN 1706
	20.0 °C	250.0 - 340.0 MPa	T5	DIN 1725-2, EN 1676, EN 1706

Thermal

Property	Temperature	Value	Condition	Related Standards	Comment
Coefficient of thermal expansion	200.0 °C	2.2e-05 1/K	T5	DIN 1725-2, EN 1676, EN 1706
Melting point		505.0 - 770.0 °C			Typical for Cast 3xx.x Series Aluminium
Specific heat capacity	20.0 °C	910.0 J/(kg·K)	T5	DIN 1725-2, EN 1676, EN 1706
Thermal conductivity	20.0 °C	140.0 - 170.0 W/(m·K)	T5	DIN 1725-2, EN 1676, EN 1706

Electrical

Property	Temperature	Value	Condition	Related Standards
Electrical conductivity	20.0 °C	20000000.0 - 23000000.0 S/m	T5	DIN 1725-2, EN 1676, EN 1706

Chemical properties

Property	Value	Condition	Related Standards
Aluminium	88.9 %	T5	DIN 1725-2, EN 1676, EN 1706
Copper	0.05	T5	DIN 1725-2, EN 1676, EN 1706
Iron	0.18	T5	DIN 1725-2, EN 1676, EN 1706
Magnesium	0.25 - 0.45 %	T5	DIN 1725-2, EN 1676, EN 1706
Manganese	0.1	T5	DIN 1725-2, EN 1676, EN 1706
Silicon	9.0 - 10.0 %	T5	DIN 1725-2, EN 1676, EN 1706
Titanium	0.15	T5	DIN 1725-2, EN 1676, EN 1706
Zinc	0.07	T5	DIN 1725-2, EN 1676, EN 1706

Technological properties

Property
Processing methods	permanent mould casting, sample taken from casting

Property

Processing methods

permanent mould casting, sample taken from casting

DIN 1725-2 Grade 3.1841 T61 – High‑Strength, Wear‑Resistant Casting Alloy DIN 1725-2 G‑AlMg3Si Grade 3.3241 F – High‑Performance, Corrosion‑Resistant Casting Alloy

Metal